(invertebrate zoology) An order of the subclass Cirripedia; individuals are permanently attached in the adult stage, the mantle is usually protected by calcareous plates, and six pairs of biramous thoracic appendages are present.
Thoracica
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(thə′ras·ə·kə)
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The major order of the crustacean subclass Cirripedia. The adult animals are permanently attached. The mantle is usually reinforced by calcareous plates. Six pairs of biramous cirri are present, and the abdomen is absent or represented by caudal appendages. Antennules are present in the adult, and cement glands are strongly developed. Most species are hermaphroditic. Thoracica are subdivided into three suborders: Lepadomorpha, stalked or goose barnacles; Balanomorpha, the common acorn barnacles; and Verrucomorpha, a rare group of asymmetric barnacles. See also Balanomorpha; Barnacle; Cirripedia; Lepadomorpha; Verrucomorpha.
| Wikipedia: Thoracica |
| Thoracica | |
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| Semibalanus balanoides | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Maxillopoda |
| Subclass: | Thecostraca |
| Infraclass: | Cirripedia |
| Superorder: | Thoracica Darwin, 1854 |
| Orders | |
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Wikispecies has information related to: Thoracica |
Thoracica is a superorder of crustaceans which contains the most familiar species of barnacles found on rocky coasts, such as Semibalanus balanoides and Chthamalus stellatus. They have six well-developed limbs, and may be either stalked or sessile. The carapace is heavily calcified. The group includes free-living and commensal species.[1]
Some species are considered a seafood delicacy in the Atlantic islands of the Azores, Madeira, Canary islands and Cape Verde.
Classification
This article follows Martin and Davis in placing Thoracica as a superorder of Cirripedia and in the following classification of thoracicans down to the level of families:[2]
Superorder Thoracica Darwin, 1854
- Order Pedunculata Lamarck, 1818
- Suborder Heteralepadomorpha Newman, 1987
- Anelasmatidae Gruvel, 1905
- Heteralepadidae Nilsson-Cantell, 1921
- Koleolepadidae Hiro, 1933
- Malacolepadidae Hiro, 1937
- Microlepadidae Zevina, 1980
- Rhizolepadidae Zevina, 1980
- Suborder Iblomorpha Newman, 1987
- Iblidae Leach, 1825
- Suborder Lepadomorpha Pilsbry, 1916
- Lepadidae Darwin, 1852
- Oxynaspididae Gruvel, 1905
- Poecilasmatidae Annandale, 1909
- Suborder Scalpellomorpha Newman, 1987
- Calanticidae Zevina, 1978
- Lithotryidae Gruvel, 1905
- Pollicipedidae Leach, 1817
- Scalpellidae Pilsbry, 1907
- Suborder Heteralepadomorpha Newman, 1987
- Order Sessilia Lamarck, 1818
Gooseneck barnacles (Lepas anserifera)
- Suborder Brachylepadomorpha Withers, 1923
- Neobrachylepadidae Newman & Yamaguchi, 1995
- Suborder Verrucomorpha Pilsbry, 1916
- Neoverrucidae Newman, 1989
- Verrucidae Darwin, 1854
- Suborder Balanomorpha Pilsbry, 1916
- Superfamily Chionelasmatoidea Buckeridge, 1983
- Chionelasmatidae Buckeridge, 1983
- Superfamily Pachylasmatoidea Utinomi, 1968
- Pachylasmatidae Utinomi, 1968
- Superfamily Chthamaloidea Darwin, 1854
- Catophragmidae Utinomi, 1968
- Chthamalidae Darwin, 1854
- Superfamily Coronuloidea Leach, 1817
- Chelonibiidae Pilsbry, 1916
- Coronulidae Leach, 1817
- Platylepadidae Newman & Ross, 1976
- Superfamily Tetraclitoidea Gruvel, 1903
- Bathylasmatidae Newman & Ross, 1971
- Tetraclitidae Gruvel, 1903
- Superfamily Balanoidea Leach, 1817
- Archaeobalanidae Newman & Ross, 1976
- Balanidae Leach, 1817
- Pyrgomatidae Gray, 1825
- Superfamily Chionelasmatoidea Buckeridge, 1983
- Suborder Brachylepadomorpha Withers, 1923
References
- ^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadephia, PA: Holt-Saunders International. p. 706. ISBN 0-03-056747-5.
- ^ Joel W. Martin & George E. Davis (2001) (PDF). An Updated Classification of the Recent Crustacea. Natural History Museum of Los Angeles County. pp. 132 pp. http://atiniui.nhm.org/pdfs/3839/3839.pdf.
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Learn More
 | Chthamalidae (invertebrate zoology) |
| Balanomorpha (invertebrate zoology) |
| Verrucomorpha (invertebrate zoology) |
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Mentioned in
- Chthamalidae (invertebrate zoology)
- Balanomorpha (invertebrate zoology)
- Verrucomorpha (invertebrate zoology)
- Lepadomorpha (invertebrate zoology)
